Convert files of any types to a file with c strings.

Question

Please suggest a small command-line utility (for Windows) to convert files from particular directory to a valid c file. Maybe it can be done just with batch commands? The resulting file should look like this:

static const unsigned char some_file[] = {
    /* some_file.html */
    0x2f, 0x70, 0x72, 0x6f, 0x63, 0x65, 0x73, 0x73, 0x65, 0x73, 0x2e, 0x73, 0x68, 0x74, 0x6d, 0x6c, 0,
    0x25, 0x21, 0x3a, 0x20, 0x2f, 0x68, 0x65, 0x61, 0x64, 0x65
}

static const unsigned char some_other_file[] = {
    /* some_other_file.png*/
    0x2f, 0x34, 0x30, 0x34, 0x2e, 0x68, 0x74, 0x6d, 0x6c, 0,
    0x3c, 0x68, 0x74, 0x6d, 0x6c, 0x3e, 0xa, 0x20, 0x20, 0x3c
}

P.S. Please don't suggest Perl and Python ports. They are too heavy for this task.

P.P.S. May be someone knows more customizable utility than bin2h, but less heavy and complex than awt? Which can parse several files and put them into one C. Also specifing custom variable names (using some kind of an index file) whould be great. So it can be added to the build process.

Answer 1

There's a windows port of awk that you could use.

Answer 2

Bin2h will do this.

Bin2h - Win32 binary to C header file converter

A Win32 command-line utility for converting a binary file into a C header file, representing the contents of that file as a block of data.

I don't believe the input file has to be a binary file.

Answer 3

G'day,

While you're looking at awk I'd suggest having a look at the complete range of the cygwin utilities.Lots of useful stuff in there.

Answer 4

Use xxd -i file.

I use the one included with Vim. For example:

C:\Documents and Settings\user> xxd -i error.log | head -n2
unsigned char error_log[] = {
  0x0c, 0x0d, 0x0a, 0x3d, 0x3d, 0x32, 0x30, 0x30, 0x39, 0x2f, 0x35, 0x2f,

See also Is it possible to view a binary in ones and zeros?

Answer 5

SRecord can do that, and more. Though it is hardly difficult to write your own in C.

Answer 6

If you want a utility that can be freely used (commercial or whatever) here's a GPL bin2c by Adrian Prantl:

• http://stud3.tuwien.ac.at/~e0025274/bin2c/bin2c.html

It's a single 70 line or so C file - nothing to it to compile and run.